Phthalic Anhydride | 85-44-9

Cas No :

85-44-9

Synonyms :

Form :

Solid

Molecular Weight :

148.12 G/mol

Molecular Formula :

C8H4O3

Boiling Point :

210 °c

Melting Point :

131.6 °c

Flash Point :

210 °c

Solubility :

Sparingly Soluble In Water; Soluble In Acetone, Benzene, Toluene, Chlorinated Solvents; Insoluble In Most Aliphatic Hydrocarbons

Description :

Phthalic Anhydride Supplier and Exporter for the USA

Chemical Bull is a trusted Phthalic Anhydride supplier, distributor, wholesaler, and exporter for the USA, supplying commercial requirements for plasticizer manufacturing, alkyd resins, unsaturated polyester resins, coatings, pigments, dyes, and specialty chemical production.

Phthalic Anhydride is an aromatic acid anhydride widely used as a chemical intermediate for plasticizers, polyester resins, alkyd resins, coatings, and specialty organic synthesis. USA manufacturers commonly evaluate Phthalic Anhydride based on purity, color, moisture, acidity, melting characteristics, impurity profile, packaging, COA, SDS, and batch consistency.

Quick Answer

Phthalic Anhydride is mainly used in plasticizer manufacturing, alkyd resins, unsaturated polyester resins, coatings, pigments, dyes, and specialty chemical intermediates. Submit a bulk enquiry with your required grade, purity, quantity, application, packaging, and USA delivery destination to receive availability and commercial pricing.


What Is Phthalic Anhydride?

Phthalic Anhydride is an aromatic cyclic anhydride used extensively as an intermediate in resin, plasticizer, coating, pigment, and specialty chemical manufacturing.

Its reactive anhydride functionality allows it to react with alcohols, glycols, and other suitable raw materials to produce esters, polyester resins, alkyd resins, and other industrial derivatives.

Phthalic Anhydride is commonly sourced by plasticizer manufacturers, alkyd resin producers, unsaturated polyester resin companies, coating manufacturers, pigment and dye businesses, specialty chemical producers, distributors, and industrial procurement teams.


Phthalic Anhydride Product Information

Product Name: Phthalic Anhydride

Chemical Type: Aromatic Acid Anhydride

Primary Functions: Plasticizer intermediate, resin raw material, esterification feedstock, and specialty chemical intermediate

Main Industries: Plasticizers, alkyd resins, unsaturated polyester resins, coatings, pigments, dyes, and specialty chemicals

Commercial specifications can vary according to purity, color, moisture, acidity, melting characteristics, and impurity profile. Buyers should review the supplied COA, SDS, and technical specification before commercial approval.


Phthalic Anhydride Applications for Industrial Manufacturing

Plasticizer Manufacturing

Phthalic Anhydride is an important raw material for manufacturing phthalate ester plasticizers.

These plasticizers are used in selected flexible polymer and PVC formulations where manufacturers require flexibility, processability, and suitable mechanical performance.

Alkyd Resin Manufacturing

Phthalic Anhydride is widely used in alkyd resin production for paints, coatings, varnishes, and industrial finishes.

Its aromatic structure contributes to resin formation and helps manufacturers tailor hardness, durability, drying behavior, and film performance.

Unsaturated Polyester Resins

Phthalic Anhydride is used in selected unsaturated polyester resin systems.

These resins are used in composites, fiberglass-reinforced plastics, laminates, cast products, and other thermoset applications.

Coatings and Varnishes

Phthalic Anhydride is an important intermediate for selected coating resins, varnishes, and protective finishes.

Manufacturers evaluate resin chemistry, compatibility, hardness, flexibility, drying profile, and finished-film performance when selecting the material.

Pigment and Dye Intermediates

Phthalic Anhydride is used in selected pigment, dye, and colorant intermediate manufacturing.

Its aromatic anhydride structure makes it useful as a building block in specialty organic synthesis and color-chemical production.

Polyester and Specialty Resin Systems

Phthalic Anhydride may be used in selected polyester and specialty resin formulations.

Its role depends on glycol selection, reaction chemistry, molecular-weight targets, curing requirements, and final resin performance.

Specialty Chemical Synthesis

Phthalic Anhydride is also used as an intermediate in selected esters, resins, pigments, dyes, and specialty organic derivatives.

The required grade should be matched to purity, reaction chemistry, moisture limits, impurity profile, and downstream product specifications.


Why Manufacturers Source Phthalic Anhydride

Key Plasticizer Intermediate

Phthalic Anhydride is an important feedstock for selected phthalate ester plasticizer manufacturing processes.

Important Resin Raw Material

It is widely used in alkyd and polyester resin systems for paints, coatings, composites, and industrial finishes.

Useful Aromatic Building Block

Its reactive anhydride group makes it useful in esterification and specialty chemical synthesis.

Broad Industrial Applications

Phthalic Anhydride serves manufacturers across plasticizers, resins, coatings, pigments, dyes, composites, and specialty chemicals.

Suitable for Bulk Procurement

Phthalic Anhydride can be sourced in commercial and recurring quantities for manufacturers, resin producers, formulators, distributors, and industrial procurement teams.


Phthalic Anhydride Supplier for USA Manufacturers

When comparing a Phthalic Anhydride supplier for the USA, procurement teams should review purity, color, moisture, acidity, melting characteristics, impurity profile, batch consistency, COA, SDS availability, packaging, lead time, and recurring supply capability.

Chemical Bull supports commercial requirements for plasticizer manufacturers, alkyd resin producers, unsaturated polyester resin companies, coating businesses, pigment and dye manufacturers, specialty chemical companies, distributors, and procurement teams across the United States.


Related Plasticizer and Resin Chemicals

Manufacturers sourcing Phthalic Anhydride for plasticizer, resin, and coating applications may also explore Diisobutyl Phthalate, Dioctyl Terephthalate, Trimellitic Anhydride, and 2-Ethylhexanol.

These related materials are commonly used across plasticizer manufacturing, PVC processing, resins, coatings, flexible polymers, and specialty chemical production.


Phthalic Anhydride SDS and Documentation

USA buyers should review the latest supplier-issued Phthalic Anhydride SDS before handling, storage, transportation, processing, or commercial use.

Chemical Bull can provide available COA, SDS, product specifications, and technical documentation with commercial supply enquiries.

Buyers should confirm purity, moisture, acidity, melting characteristics, impurity profile, storage requirements, and application-specific specifications before commercial approval.


Buy Phthalic Anhydride in Bulk for the USA

Chemical Bull supports bulk Phthalic Anhydride requirements for plasticizer manufacturers, alkyd resin producers, unsaturated polyester resin companies, coating manufacturers, pigment and dye businesses, specialty chemical producers, distributors, and industrial procurement teams.

Share your required grade, purity, application, quantity, packaging preference, documentation requirements, and USA delivery destination to receive availability and a customized quotation.


Frequently Asked Questions

  1. What is Phthalic Anhydride?

    Phthalic Anhydride is an aromatic acid anhydride used as a chemical intermediate in plasticizers, alkyd resins, polyester resins, coatings, pigments, dyes, and specialty chemical manufacturing.

  2. What is Phthalic Anhydride used for?

    Phthalic Anhydride is mainly used in plasticizer production, alkyd resins, unsaturated polyester resins, paints, coatings, pigments, dyes, and specialty chemical synthesis.

  3. Is Phthalic Anhydride used in plasticizer manufacturing?

    Yes. Phthalic Anhydride is an important raw material for manufacturing selected phthalate ester plasticizers used in flexible polymer and PVC applications.

  4. What should buyers check before purchasing Phthalic Anhydride?

    Buyers should review purity, color, moisture, acidity, melting characteristics, impurity profile, COA, SDS, packaging, storage requirements, and batch consistency.

  5. Can Chemical Bull support bulk Phthalic Anhydride supply in the USA?

    Yes. Chemical Bull supports commercial and recurring Phthalic Anhydride requirements for plasticizer, resin, coating, pigment, dye, and specialty chemical manufacturers across the United States.